Company lists · Data refreshed November 2026

Top 25 Hvac efficiency upgrade providers based in the United States

Name: Hvac efficiency upgrade providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 3,345 companies tracked

RevenueBase identified 3,345 company matches for hvac efficiency upgrade providers associated with the United States as of November 2026 and tracks 23,835 professional contacts across them, including 6,237 with verified work emails. New York is the largest hub.

This list covers company matches for hvac efficiency upgrade providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

3,345Companies

23,835Contacts tracked

6,237Verified emails

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The 25 largest hvac efficiency upgrade providers based in the United States

Ranked by team size

Top 25 of 3,345 company matches for hvac efficiency upgrade providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Homeworks Energy, INC	Exact match	Medford, MA, United StatesHQ recorded Nov 6, 2026	201-500	381 contacts →
	Exact match “At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Boland	Exact match	Gaithersburg, MD, United StatesHQ recorded Nov 6, 2026	201-500	333 contacts →
	Exact match “Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Lime Energy	Exact match	Newark, NJ, United StatesHQ recorded Nov 6, 2026	201-500	250 contacts →
	Exact match “Lime Energy is building a new energy future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Airtron Heating & AIR Conditioning	Exact match	Columbus, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	249 contacts →
	Exact match “Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Reliable Heating & AIR	Exact match	Kennesaw, GA, United StatesHQ recorded Nov 6, 2026	201-500	245 contacts →
	Exact match “Since 1978, Reliable Heating & Air has been serving all of Metro Atlanta's communities offering heating, cooling, plumbing and electrical services, indoor air quality, duct…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Energy Air, INC	Exact match	Orlando, FL, United StatesHQ recorded Nov 6, 2026	201-500	223 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Haynes Mechanical Systems	Exact match	Greenwood Village, CO, United StatesHQ recorded Nov 6, 2026	201-500	208 contacts →
	Exact match “Haynes Mechanical Systems has been keeping commercial buildings running strong since 1968.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	American Mechanical Services	Exact match	Laurel, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	175 contacts →
	Exact match “AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Marshalls INC	Exact match	Lynnwood, WA, United StatesHQ recorded Nov 6, 2026	n/a	173 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	GSM Services	Exact match	Gastonia, NC, United StatesHQ recorded Nov 6, 2026	201-500	169 contacts →
	Exact match “For nearly a century, GSM Services has built its reputation on reliability, honesty, expert service, and high-quality workmanship.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Engineered Cooling Services	Exact match	Pensacola, FL, United StatesHQ recorded Nov 6, 2026	201-500	159 contacts →
	Exact match “Engineered Cooling Services is the Southeast’s leading energy and HVAC services company headquartered in Pensacola, FL with local offices in Mobile, Montgomery, Birmingham…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Melink Corporation	Exact match	Milford, OH, United StatesHQ recorded Nov 6, 2026	51-200	134 contacts →
	Exact match “We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	PSD	Exact match	Ithaca, NY, United StatesHQ recorded Nov 6, 2026	51-200	120 contacts →
	Exact match “PSD is an energy efficiency services and technology company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Midwest Mechanical Commercial, Industrial Hvac Mechanical Services	Exact match	Lombard, IL, United StatesHQ recorded Nov 6, 2026	51-200	115 contacts →
	Exact match “Chicago's Facilities Management Company Midwest Mechanical is a commercial HVAC services and facility management company focused on energy efficiency for building owners and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Powers Building Hvac, Controls, And Service	Exact match	North Little Rock, MS, United StatesHQ recorded Nov 6, 2026	201-500	114 contacts →
	Exact match “Our goal at Powers is to make your buildings productive, comfortable, and efficient to operate.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Seasons 4 INC	Exact match	Douglasville, GA, United StatesHQ recorded Nov 6, 2026	51-200	107 contacts →
	Exact match “Exceeding expectations since 1971, Seasons 4 has been providing custom HVAC systems for supermarkets, schools, commercial and office buildings, government facilities, and other…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Encon Heating & A C	Exact match	Stratford, CT, United StatesHQ recorded Nov 6, 2026	201-500	93 contacts →
	Exact match “ENCON Heating & A/C provides engineering, installation, and maintenance of HVAC systems for both commercial and custom residential applications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	ONE Stop Cooling And Heating	Exact match	Winter Park, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	93 contacts →
	Exact match “One Stop Cooling & Heating has been providing exceptional installations and service for 26 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Casa Mechanical Services	Exact match	Round Rock, TX, United StatesHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “CASA Mechanical is owned and operated by the W.G.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	HALCO	Exact match	Phelps, NY, United StatesHQ recorded Nov 6, 2026	51-200	89 contacts →
	Exact match “Halco is a highly accredited, national award-winning contractor that has been providing high-quality solutions to residential and commercial clients since 1984.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Lee's Air, Plumbing, Heating, & Roofing	Exact match	Fresno, CA, United StatesHQ recorded Nov 6, 2026	51-200	88 contacts →
	Exact match “Serving Fresno, CA Since 1981.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Norman S. Wright Climatec Mechanical Equipment	Exact match	Anaheim, CA, United StatesHQ recorded Nov 6, 2026	51-200	85 contacts →
	Exact match “At Norman S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Elitaire	Exact match	Cincinnati, OH, United StatesHQ recorded Nov 6, 2026	11-50	79 contacts →
	Exact match “ElitAire - Technical experts in energy-optimized building solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	SEMCO	Exact match	Birmingham, AL, United StatesHQ recorded Nov 6, 2026	n/a	73 contacts →
	Exact match “If your business is interested in cutting energy costs and securing little known incentives to help fund initial project costs, SEMCO can help you.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Alpine Home AIR	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	69 contacts →
	Exact match “Founded in 2002, Alpine is a team of forward-thinking innovators working to provide intelligent heating and cooling solutions to homeowners in a way that:* Leads Americans away…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “hvac efficiency upgrade providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,345 hvac efficiency upgrade providers based in the United States

See the full list, filter by size, metro and specialty, and access 6,237 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac efficiency upgrade providers based in the United States at a glance

As of Nov 6, 2026

26.2%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

1,688

11-50

1,289

51-200

268

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,345 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “hvac efficiency upgrade providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 6,237 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Hvac efficiency upgrade providers by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “hvac efficiency upgrade providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac efficiency upgrade providers are there based in the United States?

RevenueBase identified 3,345 company matches for hvac efficiency upgrade providers associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Homeworks Energy, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hvac efficiency upgrade providers?

New York leads with 40 company records, followed by Houston (36) and Austin (34).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,237 professional contacts with verified work emails tracked across these 3,345 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.